深部盐水层CO_2地质埋存适宜性评价指标体系及其应用  

Construction and Application of Comprehensive Evaluation Index System for the Suitability of CO_2 Geological Storage in Deep Saline Aquifer

作　　者：杨霄翼[1] 刘延锋[1] 徐连三 

机构地区：[1]中国地质大学环境学院,湖北武汉430074 [2]武汉地质工程勘察院,湖北武汉430051

出　　处：《安全与环境工程》2014年第5期71-77,共7页Safety and Environmental Engineering

基　　金：国土资源部公益性行业科研专项(201211063);中国地质调查局项目(1212011087127)

摘　　要：深部盐水层CO2地质埋存具有极高的埋存潜力,其埋存区域的适宜性评价是科学选址的重要依据,但我国至今没有建立该领域完善的评价指标体系。本文在总结国内外相关领域的研究成果的基础上,结合相近领域构建指标体系的成熟经验,提出了全面性与针对性相结合、可行性与可操作性相结合、科学性与客观性相结合以及系统性与层次性相结合的指标体系构建原则,建立了以技术性、安全性、经济性与社会环境为准则的包含26项指标的深部盐水层CO2地质埋存适宜性评价指标体系;利用层次分析法确定了准则和指标的权重,并为每个指标拟定了从适宜到不适宜的五级评分标准;最后以松辽盆地的一级构造单元为例,按照指标逐级加权求和的评价方法进行了综合评价,通过综合得分比较得出中央坳陷区相对适宜性最好,是松辽盆地优先开展详细CO2深部盐水层埋存工程的区域。Deep saline aquifer is the most potential storage body for CO2 geological storage,and the evaluation of the site suitability is considered as an important basis for scientific site selection.But a complete evaluation system has been built up yet in China.Based on the research results of related fields and the ripe experience of index system construction in the similar fields of the topic,this paper establishes a comprehensive evaluation index system for suitability of CO2 storage in deep saline aquifer with the criterion layer of technology,security,economy,and social environment conditions.The construction principles we put forward integrate comprehensiveness with pertinence,feasibility with operability,scientificity with objectivity,and systematicness with hierarchy.The paper determines the index weights by AHP,and specifies the evaluation standards with five levels to each index.At the end,the paper takes the first-order tectonic units of Songliao Basin as an example to evaluate the suitability by applying the established evaluation index system with weighted sum method calculated in layers.The evaluation results show that the central depression area has relatively good suitability for CO2 geological storage in deep saline aquifer in seven units,which can be considered as the prior area for CO2 geological storage in Songliao Basin in future.

关 键 词：深部盐水层 CO2地质埋存 适宜性评价 指标体系 松辽盆地 

分 类 号：X701[环境科学与工程—环境工程]